The colours we see are the wavelengths that are reflected or transmitted. For example, a red shirt looks red because the dye molecules in the fabric have absorbed the wavelengths of light from the violet/blue end of the spectrum.
n = number of vibrations set in the string = 400 vibrations
t = total time taken for "n" vibrations set in the string = 4 second
f = frequency of the sound emitted due to vibrations set in the string
frequency of the sound emitted due to vibrations set in the string is given as
f = n/t
inserting the above values in the above formula
f = 400/4
f = 100 Hz
hence the frequency of sound comes out to be 100 Hz
A state in which an atom has more energy than it does at its ground state.
Hopes this helps!
Answer:
Density is the amount of mass in a specified space. It is a way to measure how compact an object is
Explanation:
Sweat is slightly acidic which helps to protect the body.
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